More about circuit (744)

1-07-2010 | The purpose of the circuit is to ensure that AC power is not supplied to devices connected to K3 unless the device connected to K2 is drawin...

1-07-2010 | This crystal tester is very straightforward. Fitting a crystal or switching on the supply voltage generates a ‘start pulse’ resulting from t...

1-07-2010 | Most National Health Departments and Councils seem to agree that the recommended fridge temperature should be between 2 (C and 7 (C (35 (F t...

1-07-2010 | In sailing regattas it’s handy to have a daggerboard that can be raised and lowered vertically. As the winding handle or positioning motor n...

1-07-2010 | The majority of hand-held digital volt meters use an LCD screen and are powered from a nine volt battery. Inside is most probably an ICL7106...

1-07-2010 | This circuit is a simple but high-quality preamplifier using a DS1882 digital potentiometer, a device specially designed for audio applicati...

1-07-2010 | For car alarms, emphasis should be put on hearing the audible alert and identifying it as belonging to your ‘wheels’. Unfortunately, modern...

1-07-2010 | Digital decoders in model locomotives usually have two outputs for lighting functions. One switches the front lights for forward travel, and...

1-07-2010 | The Zoom H2 is a popular portable audio recorder. This recorder can record four tracks simultaneously, but unfortunately this only applies t...

1-07-2010 | The DTMF encoder circuit shown here is based on the HT9200B tone generator device produced by Holtek and distributed by Futurlec among other...